pw_presubmit: No crypto integration tests

Temporarily disable integration tests for crypto build steps as they're
experiencing high flake rates compared to the non-crypto builders.

Bug: b/228523221
Change-Id: I2a28b9d3e9ce758f8f9b1f532d18abcd9c7b0d3d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/90144
Pigweed-Auto-Submit: Armando Montanez <amontanez@google.com>
Reviewed-by: Ted Pudlik <tpudlik@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/pw_presubmit/py/pw_presubmit/pigweed_presubmit.py b/pw_presubmit/py/pw_presubmit/pigweed_presubmit.py
index 2650e2d..cecc436 100755
--- a/pw_presubmit/py/pw_presubmit/pigweed_presubmit.py
+++ b/pw_presubmit/py/pw_presubmit/pigweed_presubmit.py
@@ -165,6 +165,7 @@
     build.gn_gen(
         ctx.root,
         ctx.output_dir,
+        pw_RUN_INTEGRATION_TESTS=False,
         dir_pw_third_party_mbedtls='"{}"'.format(ctx.package_root / 'mbedtls'),
         pw_crypto_SHA256_BACKEND='"{}"'.format(ctx.root /
                                                'pw_crypto:sha256_mbedtls'),
@@ -179,6 +180,7 @@
     build.gn_gen(
         ctx.root,
         ctx.output_dir,
+        pw_RUN_INTEGRATION_TESTS=False,
         dir_pw_third_party_boringssl='"{}"'.format(ctx.package_root /
                                                    'boringssl'),
         pw_crypto_SHA256_BACKEND='"{}"'.format(ctx.root /
@@ -195,6 +197,7 @@
     build.gn_gen(
         ctx.root,
         ctx.output_dir,
+        pw_RUN_INTEGRATION_TESTS=False,
         dir_pw_third_party_micro_ecc='"{}"'.format(ctx.package_root /
                                                    'micro-ecc'),
         pw_crypto_ECDSA_BACKEND='"{}"'.format(ctx.root /